{"id":4646,"date":"2018-09-06T11:32:00","date_gmt":"2018-09-06T06:02:00","guid":{"rendered":"http:\/\/mycbseguide.com\/blog\/ncert-solutions-class-11-chemistry-structure-of-atom-part-1\/"},"modified":"2018-10-22T17:05:51","modified_gmt":"2018-10-22T11:35:51","slug":"ncert-solutions-class-11-chemistry-structure-of-atom-part-1","status":"publish","type":"post","link":"https:\/\/mycbseguide.com\/blog\/ncert-solutions-class-11-chemistry-structure-of-atom-part-1\/","title":{"rendered":"NCERT Solutions for Class 11 Chemistry Structure of Atom Part 1"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_76 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-class-11-chemistry-structure-of-atom-part-1\/#NCERT_Class_11_Chemistry_Chapter_wise_Solutions\" >NCERT Class 11 Chemistry Chapter wise Solutions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-class-11-chemistry-structure-of-atom-part-1\/#NCERT_Solutions_for_Class_11_Chemistry_Structure_of_Atom_Part_1\" >NCERT Solutions for Class 11 Chemistry Structure of Atom Part 1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-class-11-chemistry-structure-of-atom-part-1\/#NCERT_Solutions_for_Class_11_Chemistry_Chapter_2_Structure_of_Atom_Part_1\" >NCERT Solutions for Class 11 Chemistry Chapter 2\u00a0Structure of Atom Part 1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-class-11-chemistry-structure-of-atom-part-1\/#NCERT_Solutions_for_Science_Class_3rd_to_12th\" >NCERT Solutions for Science Class 3rd to 12th<\/a><\/li><\/ul><\/nav><\/div>\n<p>NCERT Solutions for Class 11 Chemistry Structure of Atom Part 1 Class 11 Chemistry book solutions are available in PDF format for free download. These ncert book chapter wise questions and answers are very helpful for CBSE board exam. CBSE recommends NCERT books and most of the questions in CBSE exam are asked from NCERT text books. Class 11 Chemistry chapter wise NCERT solution for Class 11 Chemistry Some Basic Concepts of Chemistry Part 1 and all the chapters can be downloaded from our website and myCBSEguide mobile app for free.<\/p>\n<p style=\"text-align: center;\"><strong>NCERT solutions for Class 11 Chemistry\u00a0<a class=\"button\" href=\"https:\/\/mycbseguide.com\/downloads\/cbse-class-11-chemistry\/1356\/ncert-solutions\/5\/\">Download as PDF<\/a><\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright\" src=\"https:\/\/media-mycbseguide.s3.ap-south-1.amazonaws.com\/images\/blog\/11_Chemistry_Book.jpg\" alt=\"Class 11 Chemistry Structure of Atom Part 1\" width=\"99\" height=\"142\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_Class_11_Chemistry_Chapter_wise_Solutions\"><\/span><span class=\"underline-text\">NCERT Class 11 Chemistry Chapter wise Solutions<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>Chapter 1 \u2013 Some Basic Concepts of Chemistry<\/li>\n<li>Chapter 2 \u2013 Structure of Atom<\/li>\n<li>Chapter 3 \u2013 Classification of Elements and Periodicity in Properties<\/li>\n<li>Chapter 4 \u2013 Chemical Bonding and Molecular Structure<\/li>\n<li>Chapter 5 \u2013 States of Matter<\/li>\n<li>Chapter 6 \u2013 Thermodynamics<\/li>\n<li>Chapter 7 \u2013 Equilibrium<\/li>\n<li>Chapter 8 \u2013 Redox Reactions<\/li>\n<li>Chapter 9 \u2013 Hydrogen<\/li>\n<li>Chapter 10 \u2013 The s-Block Elements<\/li>\n<li>Chapter 11 \u2013 The p-Block Elements<\/li>\n<li>Chapter 12 \u2013 Organic Chemistry \u2013 Some Basic Principles and Techniques<\/li>\n<li>Chapter 13 \u2013\u00a0Hydrocarbons<\/li>\n<li>Chapter 14 \u2013\u00a0Environmental Chemistry<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_Solutions_for_Class_11_Chemistry_Structure_of_Atom_Part_1\"><\/span>NCERT Solutions for Class 11 Chemistry Structure of Atom Part 1<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><center><\/center><center><strong>Chapter 2 \u2013 Class 11 Chemistry Structure of Atom Part 1<\/strong><\/center>1. (i) Calculate the number of electrons which will together weight one gram.<\/p>\n<p>(ii) Calculate the mass and charge of one mole of electrons.<\/p>\n<p>2. (i) Calculate the total number of electrons present in one mole of methane.<\/p>\n<p>(ii) Find (a) the total number and (b) the total mass of neutrons in 7 mg of <img decoding=\"async\" style=\"height: 22px; width: 29px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/chemistry\/ch02\/image012.png\" \/><\/p>\n<p>(Assume that mass of a neutron<img decoding=\"async\" style=\"height: 24px; width: 130px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/chemistry\/ch02\/image013.png\" \/> ).<\/p>\n<p>(iii) Find (a) the total number and (b) the total mass of protons in 34 mg of <img decoding=\"async\" style=\"height: 24px; width: 35px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/chemistry\/ch02\/image014.png\" \/> at STP.<\/p>\n<p>Will the answer change if the temperature and pressure are changed?<\/p>\n<p>3. How many neutrons and protons are there in the following nuclei?<\/p>\n<p><img decoding=\"async\" style=\"height: 25px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/chemistry\/ch02\/image043.png\" \/> , <img decoding=\"async\" style=\"height: 25px; width: 27px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/chemistry\/ch02\/image044.png\" \/> , <img decoding=\"async\" style=\"height: 25px; width: 38px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/chemistry\/ch02\/image045.png\" \/> , <img decoding=\"async\" style=\"height: 25px; width: 34px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/chemistry\/ch02\/image046.png\" \/> , <img decoding=\"async\" style=\"height: 25px; width: 32px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/chemistry\/ch02\/image047.png\" \/><\/p>\n<hr \/>\n<p>4. Write the complete symbol for the atom with the given atomic number (Z) andAtomic mass (A)<\/p>\n<p>(i) Z = 17, A = 35<\/p>\n<p>(ii) Z = 92, A = 233<\/p>\n<p>(iii) Z = 4, A = 9<\/p>\n<p>Ans. (i) <img decoding=\"async\" style=\"height: 25px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/chemistry\/ch02\/image048.png\" \/><\/p>\n<p>(ii) <img decoding=\"async\" style=\"height: 25px; width: 32px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/chemistry\/ch02\/image049.png\" \/><\/p>\n<p>(iii) <img decoding=\"async\" style=\"height: 25px; width: 29px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/chemistry\/ch02\/image050.png\" \/><\/p>\n<p>5. Yellow light emitted from a sodium lamp has a wavelength (<img decoding=\"async\" style=\"height: 18px; width: 15px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/chemistry\/ch02\/image051.png\" \/> ) of 580 nm. Calculate the frequency (<em><img decoding=\"async\" style=\"height: 15px; width: 12px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/chemistry\/ch02\/image052.png\" \/> <\/em>) and wave number (<img decoding=\"async\" style=\"height: 23px; width: 12px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/chemistry\/ch02\/image053.png\" \/> ) of the yellow light.<\/p>\n<p>6. Find energy of each of the photons which<\/p>\n<p>(i) correspond to light of frequency <img decoding=\"async\" style=\"height: 22px; width: 62px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/chemistry\/ch02\/image062.png\" \/> Hz.<\/p>\n<p>(ii) have wavelength of 0.50 <img decoding=\"async\" style=\"height: 28px; width: 17px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/chemistry\/ch02\/image063.png\" \/>.<\/p>\n<p>7. Calculate the wavelength, frequency and wave number of a light wave whose period is<img decoding=\"async\" style=\"height: 22px; width: 85px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/chemistry\/ch02\/image073.png\" \/> .<\/p>\n<p>8. What is the number of photons of light with a wavelength of 4000 pm that provide 1 J of energy?<\/p>\n<p style=\"text-align: justify;\">9. A photon of wavelength <img decoding=\"async\" style=\"height: 22px; width: 76px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/chemistry\/ch02\/image088.png\" \/> strikes on metal surface, the work function of the metal being 2.13 eV. Calculate (i) the energy of the photon (eV), (ii) the kinetic energy of the emission, and (iii) the velocity of the photoelectron (1 eV=<img decoding=\"async\" style=\"height: 22px; width: 112px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/chemistry\/ch02\/image089.png\" \/> ).<\/p>\n<p>10. Electromagnetic radiation of wavelength 242 nm is just sufficient to ionise the sodium atom. Calculate the ionisation energy of sodium in kJ mol<sup>-1<\/sup>.<\/p>\n<p>11. A 25 watt bulb emits monochromatic yellow light of wavelength of 0.57<img decoding=\"async\" style=\"height: 17px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/chemistry\/ch02\/image101.png\" \/> m. Calculate the rate of emission of quanta per second.<\/p>\n<p style=\"text-align: justify;\">12. Electrons are emitted with zero velocity from a metal surface when it is exposed to radiation of wavelength 6800 <img decoding=\"async\" style=\"height: 28px; width: 17px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/chemistry\/ch02\/image063.png\" \/> . Calculate threshold frequency (<img decoding=\"async\" style=\"height: 24px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/chemistry\/ch02\/image105.png\" \/> ) and work function<img decoding=\"async\" style=\"height: 24px; width: 27px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/chemistry\/ch02\/image106.png\" \/> ) of the metal.<\/p>\n<p style=\"text-align: justify;\">13. What is the wavelength of light emitted when the electron in a hydrogen atom undergoes transition from an energy level with <em>n<\/em> = 4 to an energy level with <em>n<\/em> =2?<\/p>\n<p>14. How much energy is required to ionise a H atom if the electron occupies n = 5 orbit? Compare your answer with the ionization enthalpy of H atom (energy required to remove the electron from n =1 orbit).<\/p>\n<p>15. What is the maximum number of emission lines when the excited electron of an H atom in n = 6 drops to the ground state?<\/p>\n<p style=\"text-align: justify;\">16. (i) The energy associated with the first orbit in the hydrogen atom is <img decoding=\"async\" style=\"height: 22px; width: 105px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/chemistry\/ch02\/image135.png\" \/> atom<sup>-1<\/sup>. What is the energy associated with the fifth orbit?<\/p>\n<p>(ii) Calculate the radius of Bohr&#8217;s fifth orbit for hydrogen atom.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_Solutions_for_Class_11_Chemistry_Chapter_2_Structure_of_Atom_Part_1\"><\/span>NCERT Solutions for Class 11 Chemistry Chapter 2\u00a0Structure of Atom Part 1<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>NCERT Solutions Class 11 Chemistry Structure of Atom Part 1 PDF (Download) Free<\/strong>\u00a0from myCBSEguide app and myCBSEguide website. Ncert solution class 11 Chemistry includes text book solutions from both part 1 and part 2. NCERT Solutions for CBSE Class 11 Chemistry have total 14 chapters. 11 Chemistry NCERT Solutions in PDF for free Download on our website. Ncert Chemistry class 11 solutions PDF and Chemistry ncert class 11 PDF solutions with latest modifications and as per the latest CBSE syllabus are only available in myCBSEguide<\/p>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_Solutions_for_Science_Class_3rd_to_12th\"><\/span>NCERT Solutions for Science Class 3rd to 12th<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li><a href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-12-physics\/\">NCERT Solutions for Class 12 Physics<\/a>.<\/li>\n<li><a href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-12-chemistry\/\">NCERT Solutions for Class 12 Chemistry<\/a><\/li>\n<li><a href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-12-biology\/\">NCERT Solutions for Class 12 Biology<\/a><\/li>\n<li><a href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-11-physics\/\">NCERT solutions for class 11 Physics<\/a><\/li>\n<li><a href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-11-chemistry\/\">NCERT Solutions for Class 11 Chemistry<\/a><\/li>\n<li><a href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-11-biology\/\">NCERT solutions for class 11 Biology<\/a><\/li>\n<li><a href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science\/\">NCERT Solutions for Class 10 Science<\/a><\/li>\n<li><a href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-9-science\/\">NCERT Solutions for Class 9 Science<\/a><\/li>\n<li><a href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science\/\">NCERT solutions for Class 8 Science<\/a><\/li>\n<li><a href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-7-science\/\">NCERT solutions for Class 7 Science<\/a><\/li>\n<li><a href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-6-science\/\">NCERT Solutions for Class 6 Science<\/a><\/li>\n<li><a href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-5-evs\/\">NCERT Solutions for Class 5 EVS<\/a><\/li>\n<li><a href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-4-evs\/\">NCERT Solutions for Class 4 EVS<\/a><\/li>\n<li><a href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-3-evs\/\">NCERT Solutions for Class 3 EVS<\/a><\/li>\n<\/ul>\n<p>To download\u00a0NCERT Solutions for class 11 Chemistry, Physics, Biology, History, Political Science, Economics, Geography, Computer Science, Home Science, Accountancy, Business Studies and Home Science; do check myCBSEguide app or website. myCBSEguide provides sample papers with solution, test papers for chapter-wise practice, NCERT solutions, NCERT Exemplar solutions, quick revision notes for ready reference, CBSE guess papers and CBSE important question papers. Sample Paper all are made available through\u00a0<a href=\"https:\/\/play.google.com\/store\/apps\/details?id=in.techchefs.MyCBSEGuide&amp;referrer=utm_source%3Dmycbse_bottom%26utm_medium%3Dtext%26utm_campaign%3Dmycbseads\"><strong>the best app for CBSE students<\/strong><\/a>\u00a0and\u00a0<strong>myCBSEguide.com<\/strong>\u00a0website.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>NCERT Solutions for Class 11 Chemistry Structure of Atom Part 1 Class 11 Chemistry book solutions are available in PDF format for free download. These ncert book chapter wise questions and answers are very helpful for CBSE board exam. CBSE recommends NCERT books and most of the questions in CBSE exam are asked from NCERT &#8230; <a title=\"NCERT Solutions for Class 11 Chemistry Structure of Atom Part 1\" class=\"read-more\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-class-11-chemistry-structure-of-atom-part-1\/\" aria-label=\"More on NCERT Solutions for Class 11 Chemistry Structure of Atom Part 1\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":-1,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1416,281],"tags":[283,320,1449,216],"class_list":["post-4646","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-chemistry","category-ncert-solutions","tag-cbse-study-material","tag-chemistry","tag-class-11","tag-ncert-solutions"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>NCERT Solutions for Class 11 Chemistry Structure of Atom Part 1<\/title>\n<meta name=\"description\" content=\"NCERT Solutions for Class 11 Chemistry Structure of Atom Part 1 in PDF format for free download. 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